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2. DSC OVERVIEW
2-4
The characters "*", "-" appear on the DSC receiving screen in the following conditions:
• "*" indicates a corrupt character in received data.
• "-" indicates missing digits after decimal point when receiving position data with no
info for expansion (expansion: digits after decimal point).
Examples:
1) When receiving position data without expansion, the indication is
"LAT: 12°34’N".
2) When receiving position data with expansion, the indication is
"LAT: 12°34,5678’N".
3) When receiving position data with no info for expansion, the indication is
"LAT: 12°34,----’N".
2.4.2 TX calls
Below are sample distress alert and individual TX call screens. The contents of other
types of TX calls are similar to that of the individual call.
Distress alert
Individual TX call
Nature of Distress
Position of ship in distress (your
ship) and time of distress position
Communication mode
Message type
(Individual)
ID No. of station
where message
is to be sent
Priority (Routine,
Safety, Urgency)
Communication
mode
Communication
channel